Closure for collapsible containers



Dec. 5, 1933. s. BELSEY ET AL CLOSURE FOR COLLAPSIBLE CONTAINERS FiledMay 18, 1932 M d. I!

465/ Had/1v mun/"'09s JQMULL g5 pert/CK 5% 7* 6 ia/v N w Patented Dec.5, 1933 UNITED STATES PATENT OFFICE Application May 18, 1932, Serial No.6 11372, and in Great Britain December 22, 1931 3 Claims. (CL 221-80)This invention relates to a closure for collapsible containers, theclosure being of the kind formed by a shutter angularly displaceableacross and transversely to the axis of the mouth 5 of the containerabout a pivot parallel with but eccentric to said axis.

According to the invention, a pivoted closure of the above describedkind, is provided with a ramp surface whereby on the shutter being 1angularly displaced into the closed position over the mouth of thecontainer, the shutter becomes drawn axially towards the mouth of thecontainer.

The ramp surface is provided at the mutually interengaging surfaces ofan inturned lug provided on the shutter and of the neck of thecontainer.

In addition to the ramp-lug, the closure shutter preferably has a lugadjacent to the pivot and go which by abutting against the neck of thecontainer, limits the angular opening displacement of the shutter. Thisprecludes the shutter from being angularly displaced towards the mouthof the container in a direction other than the 2,5 direction in whichthe ramp-lug can engage with a surface provided on the neck of thecontainer for engagement therewith.

A representative example of a collapsible container fitted with aclosure shutter as above 80 described, is illustrated on theaccompanying drawing, in which:

Fig. 1 is an elevation showing the shutter closed.

Fig.2isahaltcrosssectiohnlongthe line 88 2-2 of Fig. 1 as viewed towardsthe mouth of the container.

Fig. 3 is an elevation as viewed at right angles to Fig. 1, and showingthe shutter open and the container broken away.

PlgJisaviewsimilsrtoPlmhbuts-sviewed from a different angle.

Pig. 5 is an end view of the container .as viewed from the mouth end andshowing the shutter closed.

Fig. 6 is a longitudinal section along the line 66 of Fig. 5.

o is a collapsible container, the neck b of which, formed with theextrusion orifice or mouth c, has 9. lug d on one side.

eisasheetmetaldiscwhlchbymeinsofs rivet {,passing through a lug c on thedisc and secured in the above mentioned lug d on the neck b, isangularly displaceable over the mouth of the orifice c. I The extremitya of the lug a is bent out of the plane of the disc e and is directedtowards the body a of the container, so that by such extremity gabutting against the surface of the neck I), angular displacement of thedisc e is limited.

The disc e is also provided remote from the rivet f, with another lug h.This lug h is bent out of the plane of the disc e and radially inwards,thus providing an inwardly directed claw h.

The neck b is formed with a second lug i located to be engaged by theclaw lug h on closure of the shutter disc e. The surface of the -claw his inclined in such direction that on prevents displacement of theshutter disc e 30 beyond the closed position.

The shutter disc e is centrally recessed and athincorkpackingdiscjisflrmlyseatedinthe recess.

I claim:

1. In a closure for a collapsible container having a neck and mouth, apivot mounted on said mouth parallel with but eccentric to the axis orsaid mouth,. a shutter disc mounted on said pivot outside said mouth andangularly displaceable transversely across said axis, an inturned clawon said shutter disc and having a border of said claw encountering saidneck when said shutter disc is coaxial with said mouth, and a surface onsaid neck engaged by said claw, said claw and said surface progressivelymutually engaging obliquely to said axis.

'2. In a closure for a collapsible container having a neck and mouth, apivot mounted on said mouth parallel with but eccentric to the axis ofsaid mouth, a shutter disc mounted on said pivot outside said mouth andangularly displaceable transversely across said axis, onintm'nedclewonssidshutterdischsvingsmfsceobllquetosaidsxissndhavingsborderor said claw encountering said neck when said shutter disc is coaxialwith said mouth, and a surface on said neck progressively engaged bysaid oblique surface of said claw.

3. In a closure for a collapsible container havno ing a neck and mouth,a pivot mounted on said said claw encountering said neck when said mouthparallel with but eccentric to the axis of shutter disc is coaxial withsaid mouth, and a said mouth, a shutter disc mounted on said lug on saidneck having a surface progressively pivot outside said mouth andangularly' disengaged by said oblique surface of said claw.

placeable transversely across said axis, an inturned claw on saidshutter disc having asur- SAMUEL BEL-SEY. race oblique to said axis andhaving a border of PATRICK CASSIN.

